I was looking a magazine and one of the articles was talking about this thing called Office Web Apps.
I don't know if you guys already know about this,or if its old or something but i decided to check it out.
I had never herd of it so i decided to share it with you guys.
All you have to do is login with your Windows Live ID on microsoft's website and you can choose from Word, Excel, Powerpoint, and One Note and its all online for Free.
Here it is:
Office Web Apps - Microsoft Office
Just press "Get Started Free" and login.